code: def test_value(self, input_param, img, meta_dict, expected):
      _, meta_dict = IntensityStats(**input_param)(img, meta_dict)
      for k, v in expected.items():
          self.assertTrue(k in meta_dict)
          np.testing.assert_allclose(v, meta_dict[k], atol=1e-3)
  
file_path: MONAI/tests/test_intensity_stats.py
imports: from __future__ import annotations
  import unittest
  import numpy
  from parameterized import parameterized
  from monai.transforms import IntensityStats
  from tests.utils import TEST_NDARRAYS
label_desc: Use image node_id 1 for calling the TestIntensityStats obj's underlying member method code with example usage: obj.test_value(input_param, img, meta_dict, expected) without return types